I may help you with JavaScript development, ping me.
I'm following Zold project since it's earyl days and I have to say that it has a lot of potential. I'm not sure though what will be the larger use case, asied from Zerocracy.
The real use case of any cryptocurrency now is dark market and speculations. There is nothing else. Unfortunately.
You just give us some time. Yes, currently, the only or the main application of any crypto, including Bitcoin, is dark business. But eventually, when faster solutions will show up (like ZOLD), we will start using digital money insteda of dollars. We are USIGN PayPal now, don't we? We are using Visa and MasterCard, don't we. This is digital money too. Why can't we do the same with Bitcoin or Zold?